From acf462fb61aa0a45a75769fca8c1691ed0e1ec73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Moskal?= <michal@moskal.me>
Date: Wed, 17 Jul 2019 06:23:13 -0700
Subject: [PATCH] Decrease size of GC heap to allow more DAL allocs (#2246)

---
 libs/core/codal.cpp | 4 ++--
 libs/core/pxtcore.h | 5 +----
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/libs/core/codal.cpp b/libs/core/codal.cpp
index 1c4b4894..13a0f156 100644
--- a/libs/core/codal.cpp
+++ b/libs/core/codal.cpp
@@ -28,8 +28,8 @@ MicroBitEvent lastEvent;
 void platform_init() {
     microbit_seed_random();    
     seedRandom(microbit_random(0x7fffffff));
-    if (device_heap_size(1))
-        gcPreAllocateBlock(device_heap_size(1) - 4);
+    if (device_heap_size(1) > NON_GC_HEAP_RESERVATION + 4)
+        gcPreAllocateBlock(device_heap_size(1) - NON_GC_HEAP_RESERVATION);
 }
 
 void platform_init();
diff --git a/libs/core/pxtcore.h b/libs/core/pxtcore.h
index abd5d0b8..154171da 100644
--- a/libs/core/pxtcore.h
+++ b/libs/core/pxtcore.h
@@ -16,11 +16,8 @@ void debuglog(const char *format, ...);
 
 #define GC_MAX_ALLOC_SIZE 9000
 
-#if CONFIG_ENABLED(MICROBIT_BLE_ENABLED)
 #define GC_BLOCK_SIZE 256
-#else
-#define GC_BLOCK_SIZE 1000
-#endif
+#define NON_GC_HEAP_RESERVATION 1024
 
 #define DMESG NOLOG